AI agent vulnerability · Langflow

CVE-2026-6598: Langflow: Cleartext Storage of Authentication Settings in Project Creation Endpoint

lowCVSS 4.0 2.1 · 3.1 4.3GHSA-9jpj-cph8-w449

A security vulnerability has been detected in langflow-ai langflow up to 1.8.3. The affected element is the function createproject/encryptauthsettings of the file src/backend/base/Langflow/api/v1/projects.py of the component Project Creation Endpoint. Such manipulation of the argument authsettings leads to cleartext storage in a file or on disk. The attack can be launched remotely.

Published Apr 20, 2026 · Updated Apr 24, 2026

Affected packages

langflow

Ecosystem: PyPI
Affected: < 1.9.1
Fixed in: 1.9.1
Check: pip show langflow

Advisory details

From the GitHub Advisory Database (CC BY 4.0).

A security vulnerability has been detected in langflow-ai langflow up to 1.8.3. The affected element is the function create_project/encrypt_auth_settings of the file src/backend/base/Langflow/api/v1/projects.py of the component Project Creation Endpoint. Such manipulation of the argument auth_settings leads to cleartext storage in a file or on disk. The attack can be launched remotely. The exploit has been disclosed publicly and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

References

How this page is made: the data panel comes from the GitHub Advisory Database, CISA’s KEV catalog, the NVD and FIRST EPSS, and updates twice a day. No analysis has been written for this entry yet. Methodology

More Langflow vulnerabilities

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